A penumbral lunar eclipse will occur at the Moon’s descending node of orbit on Thursday, June 17, 2038,[1] with an umbral magnitude of −0.5259. A lunar eclipse occurs when the Moon moves into the Earth's shadow, causing the Moon to be darkened. A penumbral lunar eclipse occurs when part or all of the Moon's near side passes into the Earth's penumbra. Unlike a solar eclipse, which can only be viewed from a relatively small area of the world, a lunar eclipse may be viewed from anywhere on the night side of Earth. Occurring about 2.7 days after perigee (on June 14, 2038, at 11:30 UTC), the Moon's apparent diameter will be larger.[2]

This eclipse will be the second of four penumbral lunar eclipses in 2038, with the others occurring on January 21, July 16, and December 11.

Visibility

The eclipse will be completely visible over eastern North America, South America, west and southern Africa, and western Europe, seen rising over western North America and the eastern Pacific Ocean and setting over northeast Africa, eastern Europe, and the Middle East.[3]

Eclipse details

Shown below is a table displaying details about this particular solar eclipse. It describes various parameters pertaining to this eclipse.[4]

June 17, 2038 Lunar Eclipse Parameters
Parameter Value
Penumbral Magnitude 0.44376
Umbral Magnitude −0.52587
Gamma 1.30828
Sun Right Ascension 05h42m46.1s
Sun Declination +23°22'28.6"
Sun Semi-Diameter 15'44.7"
Sun Equatorial Horizontal Parallax 08.7"
Moon Right Ascension 17h43m28.2s
Moon Declination -22°05'07.2"
Moon Semi-Diameter 16'14.3"
Moon Equatorial Horizontal Parallax 0°59'35.6"
ΔT 78.2 s

Eclipse season

See also: Eclipse cycle

This eclipse is part of an eclipse season, a period, roughly every six months, when eclipses occur. Only two (or occasionally three) eclipse seasons occur each year, and each season lasts about 35 days and repeats just short of six months (173 days) later; thus two full eclipse seasons always occur each year. Either two or three eclipses happen each eclipse season. In the sequence below, each eclipse is separated by a fortnight. The first and last eclipse in this sequence is separated by one synodic month.

Eclipse season of June–July 2038
June 17
Descending node (full moon)
 July 2
Ascending node (new moon)
 July 16
Descending node (full moon)
Penumbral lunar eclipse
Lunar Saros 111		 Annular solar eclipse
Solar Saros 137		 Penumbral lunar eclipse
Lunar Saros 149

Eclipses in 2038

Metonic

Tzolkinex

Half-Saros

Tritos

Lunar Saros 111

Inex

Triad

Lunar eclipses of 2038–2042

This eclipse is a member of a semester series. An eclipse in a semester series of lunar eclipses repeats approximately every 177 days and 4 hours (a semester) at alternating nodes of the Moon's orbit.[5]

The penumbral lunar eclipses on January 21, 2038 and July 16, 2038 occur in the previous lunar year eclipse set, and the penumbral lunar eclipses on April 5, 2042 and September 29, 2042 occur in the next lunar year eclipse set.

Lunar eclipse series sets from 2038 to 2042
Descending node   Ascending node
Saros Date
Viewing 		Type
Chart 		Gamma Saros Date
Viewing 		Type
Chart 		Gamma
111 2038 Jun 17
 Penumbral
 1.3082 116 2038 Dec 11
 Penumbral
 −1.1448
121 2039 Jun 06
 Partial
 0.5460 126 2039 Nov 30
 Partial
 −0.4721
131 2040 May 26
 Total
 −0.1872 136 2040 Nov 18
 Total
 0.2361
141 2041 May 16
 Partial
 −0.9746 146 2041 Nov 08
 Partial
 0.9212
156 2042 Oct 28
 Penumbral
 −

Saros 111

This eclipse is a part of Saros series 111, repeating every 18 years, 11 days, and containing 71 events. The series started with a penumbral lunar eclipse on June 10, 830 AD. It contains partial eclipses from September 14, 992 AD through April 8, 1335; total eclipses from April 19, 1353 through August 4, 1533; and a second set of partial eclipses from August 16, 1551 through April 23, 1948. The series ends at member 71 as a penumbral eclipse on July 19, 2092.

The longest duration of totality was produced by member 35 at 106 minutes, 14 seconds on June 12, 1443. All eclipses in this series occur at the Moon’s descending node of orbit.[6]

Greatest First
The greatest eclipse of the series occurred on 1443 Jun 12, lasting 106 minutes, 14 seconds.[7] Penumbral Partial Total Central
830 Jun 10
 992 Sep 14
 1353 Apr 19
 1389 May 10
Last
Central Total Partial Penumbral
1497 Jul 14
 1533 Aug 04
 1948 Apr 23
 2092 Jul 19

Eclipses are tabulated in three columns; every third eclipse in the same column is one exeligmos apart, so they all cast shadows over approximately the same parts of the Earth.

Tritos series

This eclipse is a part of a tritos cycle, repeating at alternating nodes every 135 synodic months (≈ 3986.63 days, or 11 years minus 1 month). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee), but groupings of 3 tritos cycles (≈ 33 years minus 3 months) come close (≈ 434.044 anomalistic months), so eclipses are similar in these groupings.

Series members between 1940 and 2200
1940 Mar 23
(Saros 102) 		1951 Feb 21
(Saros 103)
2027 Jul 18
(Saros 110) 		2038 Jun 17
(Saros 111)
2049 May 17
(Saros 112) 		2060 Apr 15
(Saros 113) 		2071 Mar 16
(Saros 114) 		2082 Feb 13
(Saros 115) 		2093 Jan 12
(Saros 116)
2103 Dec 13
(Saros 117) 		2114 Nov 12
(Saros 118) 		2125 Oct 12
(Saros 119) 		2136 Sep 10
(Saros 120) 		2147 Aug 11
(Saros 121)
2158 Jul 11
(Saros 122) 		2169 Jun 09
(Saros 123) 		2180 May 09
(Saros 124) 		2191 Apr 09
(Saros 125)

Half-Saros cycle

A lunar eclipse will be preceded and followed by solar eclipses by 9 years and 5.5 days (a half saros).[8] This lunar eclipse is related to two total solar eclipses of Solar Saros 118.

June 12, 2029 June 23, 2047

See also

Notes

  1. ^ "June 16–17, 2038 Penumbral Lunar Eclipse". timeanddate. Retrieved 29 November 2024.
  2. ^ "Moon Distances for London, United Kingdom, England". timeanddate. Retrieved 29 November 2024.
  3. ^ "Penumbral Lunar Eclipse of 2038 Jun 17" (PDF). NASA. Retrieved 29 November 2024.
  4. ^ "Penumbral Lunar Eclipse of 2038 Jun 17". EclipseWise.com. Retrieved 29 November 2024.
  5. ^ van Gent, R.H. "Solar- and Lunar-Eclipse Predictions from Antiquity to the Present". A Catalogue of Eclipse Cycles. Utrecht University. Retrieved 6 October 2018.
  6. ^ "NASA - Catalog of Lunar Eclipses of Saros 111". eclipse.gsfc.nasa.gov.
  7. ^ Listing of Eclipses of series 111
  8. ^ Mathematical Astronomy Morsels, Jean Meeus, p.110, Chapter 18, The half-saros
Allikas: https://en.wikipedia.org/wiki/June_2038_lunar_eclipse
No tags for this post.